Brand loyalty, in marketing, consists of a consumer's commitment to repurchase or otherwise continue using the brand and can be demonstrated by repeated buying of a product or service or other positive behaviors such as word of mouth advocacy. Brand loyalty is more than simple repurchasing, however. Customers may repurchase a brand due to situational constraints (such as vendor lock-in), a lack of viable alternatives, or out of convenience. Such loyalty is referred to as "spurious loyalty". True brand loyalty exists when customers have a high relative attitude toward the brand which is then exhibited through repurchase behavior. This type of loyalty can be a great asset to the firm: customers are willing to pay higher prices, they may cost less to serve, and can bring new customers to the firm. For example, if Joe has brand loyalty to Company A he will purchase Company A's products even if Company B's are cheaper and/or of a higher quality. An example of a major brand loyalty program that extended for several years and spread worldwide is Pepsi Stuff. Perhaps the most significant contemporary example of brand loyalty is the dedication that many Mac users show to the Apple company and its products. From the point of view of many marketers, loyalty to the brand — in terms of consumer usage — is a key factor: Usage rate
Most important of all, in this context, is usually the 'rate' of usage, to which the Pareto 80-20 Rule applies. Kotler's 'heavy users' are likely to be disproportionately important to the brand (typically, 20 percent of users accounting for 80 percent of usage — and of suppliers' profit). As a result, suppliers often segment their customers into 'heavy', 'medium' and 'light' users; as far as they can, they target 'heavy users'. Loyalty
A second dimension, however, is whether the customer is committed to the brand. Philip Kotler, again, defines four patterns of behaviour: Hardcore Loyals - who buy the brand all the time.
Softcore Loyals - loyal to two or three brands.
Shifting Loyalty - moving from one brand to another.
Switchers - with no loyalty (possibly 'deal-prone', constantly looking for bargains or 'vanity prone', looking for something different). Factors influencing brand loyalty
It has been suggested that loyalty includes some degree of pre-dispositional commitment toward a brand. Brand loyalty is viewed as multidimensional construct. It is determined by several distinct psychological processes and it entails multivariate measurements. Customers' perceived value, brand trust, customers' satisfaction, repeat purchase behaviour, and commitment are found to be the key influencing factors of brand loyalty. Commitment and repeated purchase behaviour are considered as necessary conditions for brand loyalty followed by perceived value, satisfaction, and brand trust. Fred Reichheld, one of the most influential writers on brand loyalty, claimed that enhancing customer loyalty could have dramatic effects on profitability. Among the benefits from brand loyalty — specifically, longer tenure or staying as a customer for longer — was said to be lower sensitivity to price. This claim had not been empirically tested until recently. Recent research found evidence that longer-term customers were indeed less sensitive to price increases. Industrial markets
In industrial markets, organizations regard the 'heavy users' as 'major accounts' to be handled by senior sales personnel and even managers; whereas the 'light users' may be handled by the general salesforce or by a dealer. Portfolios of brands
Andrew Ehrenberg, then of the London Business School said that consumers buy 'portfolios of brands'. They switch regularly between brands, often because they simply want a change. Thus, 'brand penetration' or 'brand share' reflects only a statistical chance that the majority of customers will buy that brand next time as part of a portfolio of...